Let's see, this isn't really a character hc but I think "The Missing Piece" and "The Missing Piece Meets the Big O" both have possible aromantic readings because they're all about looking for something you think you need, then realizing that that thing is not going to give you happiness. The "main character" in the former ends up alone AND content in the end, its fundamental nature unchanged by the relationship with the missing piece. The Big O in the latter is whole to begin with and isn't convinced that it needs to find a missing piece at all.